🐛 Fix container stop issue

README.md

@@ -53,8 +53,9 @@ Bootstrap sequence on first start:
   the MQTT `$CONTROL/dynamic-security/v1` API. No files involved.
 * **Generated mosquitto.conf (rare)** — listeners/global settings are
   generated from the DB model and deployed through `mosquitto-control`,
-  which shares the broker's PID namespace (`pid: "service:mosquitto"`)
-  to signal reloads. No Docker socket is mounted anywhere (spec §29).
+  which OWNS the shared PID namespace (`pid: "service:mosquitto-control"`
+  on the broker); it signals the broker process and can restart it — and
+  survives broker restarts — without Docker sockets (spec §29).
 * Mosquitto 2.1's HTTP API is **not** used as a management channel: it
   has no authentication and (currently) exposes read-only plugin info.